Since 2020, a $100 basket of goods now costs $123. This 23% increase highlights how fiat's purchasing power erodes. Documenting your Bitcoin cost basis, especially through self-custody records, becomes crucial to accurately assess real gains against this backdrop of inflation. True Tax Bill Calculator: 

True Tax Bill Calculator — Exit Velocity
See what you actually paid in taxes last year — federal, state, FICA, sales, property, indirect. Then see it in Bitcoin terms. Free, no signup.